Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer
To obtain a basic understanding of the resultant changes in the human body exergy balance (input, consumption, storage, and output) accompanying outdoor air temperature fluctuations, a “human body system and a built environmental system” coupled with numerical analysis was conducted. The built envir...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-09-01
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| Series: | Buildings |
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| Online Access: | http://www.mdpi.com/2075-5309/5/3/1055 |
| _version_ | 1818561077072363520 |
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| author | Koichi Isawa |
| author_facet | Koichi Isawa |
| author_sort | Koichi Isawa |
| collection | DOAJ |
| description | To obtain a basic understanding of the resultant changes in the human body exergy balance (input, consumption, storage, and output) accompanying outdoor air temperature fluctuations, a “human body system and a built environmental system” coupled with numerical analysis was conducted. The built environmental system assumed a wooden room equipped with passive cooling strategies, such as thermal insulation and solar shading devices. It was found that in the daytime, the cool radiation exergy emitted by surrounding surfaces, such as walls increased the rate of human body exergy consumption, whereas the warm radiant exergy emitted by the surrounding surfaces at night decreased the rate of human body exergy consumption. The results suggested that the rates and proportions of the different components in the exergy balance equation (exergy input, consumption, storage, and output) vary according to the outdoor temperature and humidity conditions. |
| first_indexed | 2024-12-14T00:46:19Z |
| format | Article |
| id | doaj.art-12baac1be21a476a8c9a1c0ee4500fdb |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-12-14T00:46:19Z |
| publishDate | 2015-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-12baac1be21a476a8c9a1c0ee4500fdb2022-12-21T23:24:06ZengMDPI AGBuildings2075-53092015-09-01531055106910.3390/buildings5031055buildings5031055Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in SummerKoichi Isawa0Department of Architecture, Faculty of Engineering, Fukuyama University, Hiroshima 729-0292, JapanTo obtain a basic understanding of the resultant changes in the human body exergy balance (input, consumption, storage, and output) accompanying outdoor air temperature fluctuations, a “human body system and a built environmental system” coupled with numerical analysis was conducted. The built environmental system assumed a wooden room equipped with passive cooling strategies, such as thermal insulation and solar shading devices. It was found that in the daytime, the cool radiation exergy emitted by surrounding surfaces, such as walls increased the rate of human body exergy consumption, whereas the warm radiant exergy emitted by the surrounding surfaces at night decreased the rate of human body exergy consumption. The results suggested that the rates and proportions of the different components in the exergy balance equation (exergy input, consumption, storage, and output) vary according to the outdoor temperature and humidity conditions.http://www.mdpi.com/2075-5309/5/3/1055passive systemwooden roomthermal comforthuman bodyexergy |
| spellingShingle | Koichi Isawa Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer Buildings passive system wooden room thermal comfort human body exergy |
| title | Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer |
| title_full | Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer |
| title_fullStr | Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer |
| title_full_unstemmed | Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer |
| title_short | Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer |
| title_sort | human body exergy balance numerical analysis of an indoor thermal environment of a passive wooden room in summer |
| topic | passive system wooden room thermal comfort human body exergy |
| url | http://www.mdpi.com/2075-5309/5/3/1055 |
| work_keys_str_mv | AT koichiisawa humanbodyexergybalancenumericalanalysisofanindoorthermalenvironmentofapassivewoodenroominsummer |